Pvt. Mateo-Gomez (above) adjusts Pfc. Bower's (below) gas mask after a simulated nerve agent attack.
U.S. Army Pvt. Mateo Mateo-Gomez (above) adjusts Pfc. Matthew Bower's (below) gas mask after a simulated nerve agent attack during a Nuclear, Biological and Chemical exercise held at Camp Casey, Republic of Korea, on Oct. 9, 1998. Both soldiers are assigned to the 2nd Infantry Division, 4th Chemical Company at Camp Casey.